ขอความช่วยเหลือเกี่ยวกับ php เรียก method java และให้ java ส่ง resonse กลับไปยัง function ของ codeigniter

	public static class EchoPostHandler implements HttpHandler {

		@Override
		public void handle(HttpExchange he) throws IOException {
			System.out.println("Served by /echoPost handler...");
			// parse request
			Map<String, Object> parameters = new HashMap<String, Object>();
			InputStreamReader isr = new InputStreamReader(he.getRequestBody(), "utf-8");
			BufferedReader br = new BufferedReader(isr);
			String query = br.readLine();
			parseQuery(query, parameters);


				try {
					JSONObject obj = new JSONObject();
					
					JSONArray list = new JSONArray();
					
					String response = "";
					String k = f_kill_process();
					String pit[] = k.split("\\r?\\n");
					
										
					for(int i=0;i<pit.length;i++){
						String g = pit[i];
						
						list.add(g);		
						obj.put("process", list);
						

					}						
						response = "Test response data";
						      
						he.sendResponseHeaders(200, response.length());
						OutputStream os = he.getResponseBody();
						os.write(response.toString().getBytes());
						os.close();
						System.out.println(response.toString());